Is this possible with NTFS?
The only filesystems I'm aware of that can do this are WAFL (The NetApp file system) and ZFS from Sun (Which borrows a lot of concepts from WAFL)
I wouldn't be surprised if other modern filesystems such as NILFS also used SSD for write journals, but I can't say I've seen anything written up to suggest that this is the case.
I read through the linked blog post. It sounds similar to what MS have done in Vista/7 with ReadyBoost.